Year % of total employment (modeled ILO estimate) 1991 1.26689456368727 1992 1.21657931933896 1993 1.16389311520594 1994 1.06622236686793 1995 1.04745332930349 1996 1.00090746714495 1997 0.64469881785705 1998 0.770573508306168 1999 0.418562795488968 2000 0.376307316063282 2001 0.459598907985783 2002 0.37401025520248 2003 0.376520747573639 2004 0.302085417998162 2005 0.269986204802718 2006 0.355046072903409 2007 0.266396345961246 2008 0.28041744910782 2009 0.241137741450327 2010 0.202405635533009 2011 0.143299828543564 2012 0.183028922121406 2013 0.208080278268551 2014 0.160658910675547 2015 0.189964518273732 2016 0.175341349586958 2017 0.17791294660571 2018 0.180851186424674 2019 0.184221550944811 2020 0.193348144131178 2021 0.195333453791904 2022 0.199384858724967